As for making a magnum out of it, like Bob said it'll work ok but personally I wouldn't go crazy with the loads. Also, please tell me it's a late pre-war NS (nickel steel) action or a wartime Remington 03 or a wartime 03A3. If it's a WWI-era single heat treated receiver or even a post-WWI double heat treated receiver I wouldn't be sticking a 60K psi (that could easily spike to 65-70K psi with sloppy/careless handloading) cartridge in it and putting my face behind it.
( Those early actions were made of a simple low carbon steel alloy that was case hardened for added strength (and added lubricity, slickness, for ease of operation. Even the double-heat treated actions while much stronger/safer but still made basically of the same steel alloy were never intended for "modern" very high intensity cartridges. If in doubt, research the serial number ranges that encompass the various types of steel used in the manufacturing of the 03 Springfields.)
Last edited by gnoahhh; 03/23/24.
